? coilcraft, inc. 2009 specifications subject to change without notice. please check our website for latest information. high power poe signal path magnetics document 489 -1 document 489-1 revised 01/05/09 part inductance 2 dcr max 3 isolation 4 number 1 (h) (ohms) (vrms) HPX2126L_ 850 0.24 1500 1. when ordering, please specify packaging code: HPX2126L d packaging: d =13 machine-ready reel. eia-481 embossed plastic tape (300 parts per full reel). b = less than full reel. in tape, but not machine ready. to have a leader and trailer added ($25 charge), use code letter d instead. 2. inductance measured at 100 khz, 0.1 vrms, 0 adc. 3. dcr is for each winding. 4. isolation is measured from primary to secondary of each transformer. 5. electrical specifications at 25c. refer to doc 362 ?soldering surface mount components? before soldering. part inductance 2 dcr max 3 number 1 (h) (ohms) hpf2187l_ 10.0 0.15 1. when ordering, please specify packaging code: hpf2187l c packaging: c =7 machine-ready reel. eia-481 embossed plastic tape (500 parts per full reel). b = less than full reel. in tape, but not machine ready. to have a leader and trailer added ($25 charge), use code letter c instead. d =13 machine-ready reel. eia-481 embossed plastic tape. factory order only, not stocked (2000 parts per full reel). 2. inductance measured at 100 khz, 0.1 vrms, 0 adc. 3. dcr is for each winding. 4. electrical specifications at 25c. refer to doc 362 ?soldering surface mount components? before soldering. isolation transformer common mode choke core material ferrite terminations rohs tin-silver-copper over tin over nickel over phos bronze. other terminations available at additional cost. weight hpf2187l: 240 mg; HPX2126L: 3.9 g ambient temperature ?40c to +85c storage temperature component: ?40c to +85c. packaging: ?40c to +80c resistance to soldering heat max three 40 second reflows at +260c, parts cooled to room temperature between cycles moisture sensitivity level (msl) 1 (unlimited floor life at <30c / 85% relative humidity) failures in time (fit) / mean time between failures (mtbf) 38 per billion hours / 26,315,789 hours, calculated per telcordia sr-332 packaging hpf2187l: 500/7 reel; 2000/13 reel; plastic tape: 16 mm wide, 0.35 mm thick, 8 mm pocket spacing, 4.4 mm pocket depth HPX2126L: 300/13 reel; plastic tape: 32 mm wide, 0.5 mm thick, 20 mm pocket spacing, 11 mm pocket depth pcb washing only pure water or alcohol recommended ? meets the current requirements of gigabit poe plus. ? open circuit inductance is 350 h with a 22.5 ma dc offset ? handle up to 800 ma.
? coilcraft, inc. 2009 high power poe signal path magnetics specifications subject to change without notice. please check our website for latest information. document 489-2 document 489-2 revised 01/05/09 isolation transformer HPX2126L common mode choke hpf2187l 0.720 18,29 0.620 15.75 max 0.425 10,80 max max 0.080 2,03 0.560 14,22 0.050 1,27 0.110 2,76 cen recommended land pattern 6 7 1 12 6 7 1 12 0.138 0.008 3,50 0,20 0.217 0.006 5,50 0,15 1 4 0.317 0.012 8,05 0,30 0.024 0,60 0.012 0,305 0.098 2,50 0.050 1,27 cen 0.0395 1,00 notch indicates pin 1 dot indicates pin 1 0.236 6,00 dimensions are typical prior to applying solder 0.050 1,27 cen 0.060 1,52 0.030 0,76 recommended land pattern 0.200 5,08 5 8 1 4 5 8 0.307 0.008 7,80 0,20 0.007 / 0,18 1 4 5 8 * ** hpf2187l xx 3 1 12 10 11 2 txct txct rxct rxct tx+ tx+ rx+ rx+ tx? tx? rx? rx? c1 note 1 c4 8pf c2 33 pf c5 33 pf c3 8pf c6 8pf isolation transformer HPX2126L chipset side cable side common mode choke hpf2187l 8 6 3 1 4 7 5 2 6 5 4 8 7 9 note 1. c 1=8pfminusthe output capacitance of the chipset dimensions are in inches mm dimensions are in inches mm
? coilcraft, inc. 2009 high power poe signal path magnetics specifications subject to change without notice. please check our website for latest information. document 489-3 document 489-3 revised 01/05/09 1 10 100 1000 100 90 80 70 60 50 40 30 20 10 0 frequency (mhz) insertion loss (db) 1 10 100 1000 100 90 80 70 60 50 40 30 20 10 0 frequency (mhz) return loss (db) return loss insertion loss 802.3af specification: 18 db min from 1 mhz to 40 mhz 16 db min at 50 mhz 12 db min at 80 mhz 10 db min at 100 mhz 802.3af specification: 1.0 min db from 0.1 mhz to 100 mhz 1.2 min db at 125 mhz description coilcraft?s si gnal path magnetics meet the current requirements of gigabit ethernet poe plus. the open circuit inductance is 350 h with a 22.5 ma dc offset applied from 0c to 70c. it can handle 800 ma of current. the system comprises an isolation transformer, a com- mon mode choke and six capacitors. the capacitor across the primary of the isolation transformer on the tx side tunes the circuit by matching the output capaci- tance of the chipset allowing these components to be used with virtually all chipsets. the two isolation transformers are placed in a single package (HPX2126L) and both common mode chokes in an even smaller package (hpf2187l). both pack- ages fit easily behind a standard ethernet jack. testing a matching network is used to perform the testing for return loss, insertion loss, crosstalk, common mode to common mode rejection and differential to common mode rejection. the network matches the 50 ohm single ended connection of network analyzers to 100 ohm differential balanced lines. a 1:1 balun is used with a resistive network to transform the impedance. the net- work is then calibrated out of the measurement by using open, short, load calibration techniques. the cir- cuit is then placed behind the matching network for each of the tests. all tests are performed on an agilent/ hp 8753es network analyzer. for return loss, the chip side of the component is loaded with 100 ohms and the cable side of the system is tested using the matching network. for insertion loss, the fixture used for the return loss is altered to replace the 100 ohm load with a matching network for the output port of the network analyzer. for common mode to common mode rejection, tx+ and tx? (or rx+ & rx?, depending on the side of the system) is tied together and an s21 measurement is taken from chip side to cable side. for differential to common mode rejection, the chip side of the system is excited by the network analyzer through the matching network. the measurement is taken by looking at the balance between two 50 ohm loads across the cable side of the system. for crosstalk, the chip side tx is excited by the network analyzer through the matching network. the center-tap on the chip side of each isolation transformer is grounded, and the chip side rx is measured. the cable side of both rx and tx is externally loaded 100 ohms.
? coilcraft, inc. 2009 high power poe signal path magnetics specifications subject to change without notice. please check our website for latest information. document 489-4 document 489-4 revised 01/05/09 1 10 100 1000 100 90 80 70 60 50 40 30 20 10 0 frequency (mhz) crosstalk (db) crosstalk l vs offset current C HPX2126L 802.3af specification: 45 db min at 30 mhz 40 db min at 60 mhz 33 db min at 100 mhz 0 102030405060 0 200 400 600 800 1000 1200 1400 current (ma) inductance (h) 25c 70c 85c 1 10 100 1000 100 90 80 70 60 50 40 30 20 10 0 frequency (mhz) common mode rejection (db) 1 10 100 1000 100 90 80 70 60 50 40 30 20 10 0 frequency (mhz) differential to common mode rejection (db) common mode rejection differential to common mode rejection 802.3af specification: 50 db min from 1 mhz to 10 mhz 30 db min from 10 mhz to 125 mhz 20 db min from 125 mhz to 500 mhz 802.3af specification: 45 db min at 30 mhz 40 db min at 60 mhz 35 db min at 100 mhz
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